FR630173A - Connection devices for telephone systems with automatic connection, operating with high and low frequencies - Google Patents
Connection devices for telephone systems with automatic connection, operating with high and low frequenciesInfo
- Publication number
- FR630173A FR630173A FR630173DA FR630173A FR 630173 A FR630173 A FR 630173A FR 630173D A FR630173D A FR 630173DA FR 630173 A FR630173 A FR 630173A
- Authority
- FR
- France
- Prior art keywords
- connection
- operating
- low frequencies
- telephone systems
- automatic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/32—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of open-width materials backwards and forwards between beaming rollers during treatment; Jiggers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET31561A DE608472C (en) | 1926-03-06 | 1926-03-06 | Transitional circuit between a group of intercom stations that operate at high frequencies and another group of intercom stations, in particular those that operate at low frequencies |
Publications (1)
Publication Number | Publication Date |
---|---|
FR630173A true FR630173A (en) | 1927-11-24 |
Family
ID=89899393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR630173D Expired FR630173A (en) | 1926-03-06 | 1927-03-04 | Connection devices for telephone systems with automatic connection, operating with high and low frequencies |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE608472C (en) |
FR (1) | FR630173A (en) |
GB (1) | GB267151A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2474685A (en) * | 1945-04-12 | 1949-06-28 | Stewart Warner Corp | Jet propulsion apparatus |
US2564378A (en) * | 1946-05-06 | 1951-08-14 | Punch Engineering Pty Ltd | Carrier system signaling circuits |
DE878517C (en) * | 1949-04-24 | 1953-06-05 | Siemens Ag | Procedure for the transmission of calls and elections |
FR1032605A (en) * | 1949-11-21 |
-
1926
- 1926-03-06 DE DET31561A patent/DE608472C/en not_active Expired
-
1927
- 1927-03-04 FR FR630173D patent/FR630173A/en not_active Expired
- 1927-03-07 GB GB625627A patent/GB267151A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE608472C (en) | 1935-01-24 |
GB267151A (en) | 1928-09-07 |
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